From Seven Seas:
Three things you should know about Touga Eita, second-year high school student and heir to the Touga-style ninjutsu dojo: First, he really, really loves video games. Second, when given a choice between heroics and saving his own skin, he will always choose the latter. Third, he's never so much as kissed a girl.
All this changes when a voluptuous girl with wings and taloned feet named Aero appears and calls on Eita to help save her people-the harpies of Re-Verse-from the merciless onslaught of giant robot monsters known as Gigas. Eita will follow his newfound harpy friend into a whole new world, filled with monster girls and fantastical creatures beyond his wildest dreams.

For some reason, Kunitachi Kunihiko, a language arts teacher, always finds himself quarreling with his student, Kazumiya Kazumi, an anti-social girl without any friends. When he tells her to make some friends, she declares: "Be my friend, Sensei."

Hagure Narihira is your average hopeless romantic sophomore in a magical high school for power users. He has no friends and has a crappy ability called the "drain" that absorbs human energy within a radius of 1 meter, unconsciously with his ability. Because of this "special ability", no one wanted to be his friend much less his girlfriend.

"Isn't it strange that power users with abilities creepier than mine can make friends? This world is unfair!"

It was at that moment when his feelings where on the verge of exploding that Takawashi Enju, the girl with the poisonous tongue who everyone in school knew as the "ice princess," spoke out to him. When Narihira discovers her secret by chance, she suggests that they form an alliance with the purpose of making friends. The unexpected proposal causes his heart to dance, however, he had forgotten one important thing... birds of a feather flock together.

Due to a god's mistake, high schooler Tsuguna died before his time. In exchange, the god agreed to do him a favor in his next life. Tsuguna is reborn to a noble household in a world with magic. He has an unusual form of magic that he requested from the god, the ability to create summoned creatures. However, his dark Japanese hair and eyes mark him as a cursed child in this new world, and his powers are slow to appear. He's kept in a dark basement where he reads his family's books, until one day he finally uncovers the key to his powers. Finally, he can set off into the world with his summoned companion to level up his skills!

A Kiss Note is a powerful notebook that makes anyone who has their name written together will instantly fall in love if they kiss each other regardless of any circumstances. This magical and very familiar item belongs to an angel named Guri whose job as cupid is to create couples. However, she accidentally writes down Aino Seiji, a regular high school student, and unless he kisses someone, Guri will die. She convinces Seiji to go kiss his crush, Hiyama Akane, the school's popular girl who turns out has even stronger feelings for him, bordering on obsessive and psychotic. Eventually Akane and Seiji come together but not before Guri decides that she likes Seiji as well. What seems awesome to most guys becomes hell for Seiji who just wants a normal relationship with girls.

Satou Fuuka is an orphan. Her aunt, who was her guardian, absconded in the night, leaving her with no money. Her parents wanted her to go to school, so she was looking for a job to cover her school expenses and rent (plus living expenses, though she didn't mention it). She goes to be interviewed for a part-time house helper job but is rejected before she can say anything, because the guy offering the job is the eldest for 4 brothers and it's an all-male household. She pours out her story, so he takes pity on her (even though he'd pointed out that she can't really take a part-time job if she doesn't have a guardian) and offers the job as a live-in position. However, he has one condition: she's supposed to disguise herself so his brothers don't take an interest in her. Her disguise: lots of towels around her body, so she looks fat; makeup so she looks old (39); plus her hair is all loose and she's wearing glasses.
The brothers are: Tsukasa (eldest, apparently already working); Akari (second son, first year college student with a wider strike zone for women than Tsukasa thought); Kairi (third son, genius high-schooler and Fuuka's classmate); Minato (youngest, first year middle-schooler who's a blue-eyed blond). Incidentally, Fuuka notices that none of the brothers look related.

Disguised as a man, Lu Dingning picks up a bunch of girls, with her gentleman index on max and her prince charming smile leveled up! Women are constantly surrounding her and men are getting mercilessly bent in her presence.
Life motto: As long as the hoe is dancing well, there's not a single boyfriend she can't steal!
Zong Jize, king of the city, treats her as his brother but ends up pushing her onto the bed.
Lu Yining says furiously, “Master Zong, I treated you as my brother but instead you sick bastard just wanted to sleep with me!”

In an all-girls school full of jaw-dropping beauties, a male student suddenly transfers in!!! Perhaps in the eyes of others, this would be a dream-like paradise, but in reality, the future is completely unimaginable…

From Aerandria Scans:

Momozono Nanami's dad, a man with a penchant for gambling, disappeared after accumulating a huge amount of debt. Thus, she was chased out of her house by the debt collectors. When she met a timid guy being chased by a dog, he told her that he'd give her his house. She believed his persuasive talk, but when she went to his house… it turned out to be a shrine. Moreover, a guy with fox ears appeared, which made Nanami even more confused. What will become of homeless and confused Nanami?

Third year middle school student Anna has begun living with fourth year college student Ema, and is swung about by the tactless Ema. Drawn in by the romantic designs of Ema, the once perfectly ordinary Ema, is brought into the adult world. And then, she is shown the scene of a kiss between two girls...

When he was a child, Murakami was infatuated with a girl he called Kuroneko. She insisted on knowing about aliens and having met them, but no one believed her, even young Murakami was skeptical. One day, she decides to show him the aliens, but an accident occurs and Kuroneko dies while Murakami is left seriously wounded in the hospital.
Years go by and Murakami obsesses on finding proof of the existence of aliens because of a promise he had made with Kuroneko. Then, one day, a new transfer student comes to his class, who not only looks a lot like Kuroneko but is named Kuroha Neko.
And even though she insists on never having met Murakami before, the girl has superhuman strength and seems to even be able to predict the future!
How will Murakami's life change now that he has been saved by this mysterious girl that claims to be a magician?

From Viz:
In a postapocalyptic world of heavy metal fantasy, the only thing able to save humans from orcs, lizard men, and other monsters is something even MORE evil. Sealed within a 14-year-old boy, the chaotic wizard Dark Schneider is unleashed to fight four mighty generals and their plot to resurrect the evil god Anslasax!

Do you like girls who would show you their panties even if they look disgusted?

Super rich, a genius, and good at all kinds of sports.
A man who had no interest in the opposite sex had suddenly gained an urge to see panties one day.

The maid of his house, a junior high school girl classmate, an onee-san from the bookstore-- He's not going to stop until he sees their panties!

A genius who is serious about seeing panties goes full throttle! The “flag” breaking type of comedy doesn’t stop!

“I want to see some panties!”

In the world of Eluveitie, elves and dark elves have been warring since ancient times. The one thing that could tip the balance for either side is a half-elf child born from the nameless Earthling main character's seed. This is a tale of the drama and tragedy of the battle for one generic harem lead's baby batter.

In the near future, a Japanese scientist engineers a powered exoskeleton called "Infinite Stratos" (IS). Possessing technology and combat capabilities far more advanced than any other weapon system, the IS threatens to destabilize the world. Faced with such an overpowering weapon, the nations of the world enact the "Alaska Treaty", which states that IS will never be used for military combat and that existing IS technology must be equally distributed to all nations, to prevent any one nation for dominating the others. The introduction of the IS does however have a major effect on society. As IS can only be operated by women, the power balance between men and women is broken, with women coming to dominate society over men.

Ten years after the first IS were introduced, the world has entered a new age of peace. The peace is shattered, however, by an unexpected discovery. A 15 year old Japanese boy, named Ichika Orimura, is discovered to be capable of operating an IS. Realizing the potential, Ichika is forced by the Japanese government to attend the prestigious Infinite Stratos Academy, an international academy where IS pilots from all over the world are trained. Thus his busy school life surrounded by girls begins.

The stage is set in the prestigious Private Joshi (girls) Oka High School, more commonly known as Joshi High. It became co-educational a few years ago, but females still heavily outnumber the males. So small is the number of men that it could be easily counted. While one would think guys would be pampered in such a harem school, the reality is far from heavenly. It is the world of female domination.

The story continues where the first season left off only months into the future. Yuokai Gakuen has been repaired and the new semester is underway. Tsukune and gang are back, and more powerful then ever. Anti-Thesis's true identity is revealed. With new adversaries looming on the horizon, and something much more sinister than the gang has ever faced before.

Tsukune is battling with the monster inside him. With the help of Moka, Mizore, Kurumu, Ruby, and Yukari. Tsukune trains to get his vampire blood under control and the strength to protect what he holds dear.

The new season focuses more on the girls, their past, and their families. New confrontations await them. New friends and allies will join them by their side. Together they will discover the secrets of Moka's rosary, and her lineage...

The demon king having cursed the human race by removing their ability to produce female children so that they would go extinct has had his plan foiled by the elves who made men breedable by giving them eggs(balls) ♂ which would make them become women when taken away from them.

A world of magic and swords.

Born into an aristocratic family of a large country, a boy with insufficient magic power bade farewell to his unlucky daily life. Because of his encounter with a Demon, his fate began to change. This destined meeting changed the boy’s life, affected his surroundings, and soon after, shook the entire world.

This is his tale.
[Description from NU]